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Discuss the positive impacts of volcanic activity. - Leaving Cert Geography - Question B - 2011
Question B
Discuss the positive impacts of volcanic activity.
Worked Solution & Example Answer:Discuss the positive impacts of volcanic activity. - Leaving Cert Geography - Question B - 2011
Step 1
Identify positive impacts of volcanic activity
Answer
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Geothermal Energy: Volcanic regions are often rich in geothermal energy. This form of energy can be harnessed for electricity generation and heating, providing a sustainable alternative to fossil fuels.
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Fertile Soils: Volcanic ash can enrich soil mineral content, leading to highly fertile areas. This promotes agricultural productivity, allowing for the cultivation of various crops, especially in regions such as the Italian peninsula.
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Tourism: Volcanoes attract tourists for their natural beauty and activities such as hiking and sightseeing. Tourist facilities in volcanic regions can generate significant income for local economies.
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Mineral Resources: Volcanic areas often contain valuable minerals, including copper, gold, and sulfur, which can be mined for economic benefit.
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Creation of New Land: Volcanic eruptions can also lead to the formation of new land, as seen in the case of the island of Surtsey in Iceland.
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Cultural Significance: Many cultures hold volcanoes in reverence, leading to rich historical narratives, traditions, and practices tied to these natural wonders.
Step 2
Discuss the ecological impacts of volcanic activity
Answer
Volcanic eruptions can create new ecosystems. The areas around volcanic eruptions can eventually become rich habitats for various species, fostering biodiversity over time.
As vegetation establishes itself on volcanic soils, it can lead to the return of wildlife and contribute to a balanced ecosystem. Additionally, volcanic activity can provide natural irrigation through rainfall patterns altered by the volcanic landscape.
Example: The resilience of ecosystems in areas previously disturbed by volcanic activity illustrates this impact well. Areas like Mount St. Helens in the U.S. show how life can recover and adapt post-eruption.
Step 3
Mention a specific volcanic region
Answer
The Hawaiian Islands are a prominent example of volcanic activity having positive impacts. The ongoing volcanic activity from the Kilauea volcano not only creates new land but also contributes to the unique ecology of the islands. The volcanic soil provides rich nutrients for agriculture, which supports local communities.